cucullus


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cucullus

[kyü′kəl·əs]
(invertebrate zoology)
A transverse flap at the anterior edge of the carapace that hangs over the mouthparts of certain arachnids.
References in periodicals archive ?
are: cucullus halter like and the saccular process is sickle shaped, without any projection on the inner side.
spot; male genitalia with cucullus broad and flap like --.
scale-like setae completely absent; (iii) cucullus with only some scarce tubercles restricted to anterior and lateral margins; (iv) carapace without pits (Fig.
magnus by lacking deep cuticular pits on the carapace, cucullus, and abdomen, and from those of C.
Uncus relatively long, slender, apically pointed; tegumen short and narrow; valva medium-long, proximal lobe short, broadly rounded; cucullus broadened, apical margin more or less straight, covered with long and fine hairs; costal margin sclerotized, concave, basally humped; sacculus short; ampulla rather long extending over ventral margin of valva, reaping-hook-shaped, strongly sclerotized, apically rounded; vinculum relatively broad, medium long, V-shaped.
Uncus slender and long, sharp apically; tegumen broad; valva intermediate in size; cucullus arched; harpe slender and sharp apically, shorter than uncus; sacculus processus pointed apically; clavus rectangular; saccus intermediate in size (Figs.
Uncus almost as long as tegumen, slightly shrunk at base, pointed at top; tegumen relatively broad near the base; valve thin, long, shrunk near the base; cucullus round, broad, knife-shaped; costa and sacculus narrow, without process; saccus small, V-shaped.
Uncus almost as long as harpe, bulbous in distal half, abruptly narrowing to curved and pointed; tegumen broad; valva thin, shrinking at middle; cucullus smooth and arched; costal margin slightly excurved medially; sacculus margin smooth; harpe narrow at base, slightly bulbous at middle, apex curved and pointed, reaching to 2/3 of valva; saccus Ushaped.
Uncus slender, broadened in base; tegumen weakly sclerotized, more or less narrow, with round anterior margin; valva with dense bristles on cucullus posteriorly, especially along margin; sacculus broadly developed; juxta elongate, usually longer than width of valva; aedeagus stout, with fine spines in apical portion.
4): Tegumen wide on both sides, concave medially; uncus long, digitate, apically with small acute hook; valve broad, transvere sclerite connecting long digitate process at middle; cucullus with two digitate processes, dorsal one short, ventral one long, slightly bent medially; saccus relatively small; aedeagus straight, almost twice as long as valve, slender at base.
Apical arms of uncus slender, as long as base of uncus; cucullus sharply produced apically (Fig.
Valva broad basally; cucullus elongate, with one or double stout spikes under a row of comb in 2/3 length on ventral margin and dense bristles along ventral margin.